NEPA Waterproofing Share: GuttersRoofing Visit Website PO Box 303 Lake Ariel, Pennsylvania 18436 (570) 840-9309 Facebook Hours: Monday - Sunday 8AM–5PM About Map About Trust in a local expert, trust in NEPA Waterproofing LLC. Providing the highest quality Seamless Gutters and Replacement Roofs in the Lake Wallenpaupack Area! What's Nearby? Distance: 5 10 15 20 25 50 mi.